The rumored third Windows Phone device -- a more business-focused phone codenamed "Ace" was a no-show today (if it exists at all, which I believe it does).

Many on Twitter noted the first Nokia Windows Phones were solid, but lacking some of the features one might expect -- like front-facing cameras, built-in NFC support and on-device storage of more than 16 GB.

There's no official word as to when -- and actually if -- the Lumia 800 and 710 models will come to the U.S. Nokia officials promised a "portfolio" of Windows Phones will begin rolling out in the U.S. starting early next year, but didn't actually say whether those two devices will be part of that portfolio.

What wasn't lacking was Nokia's thoughts and plans for marketing the new phones with a slogan "Amazing Every day." Company officials played up during today's kick-off keynote the way Mango features that are common to all Windows Phones will resonate with consumers and help differentiate Microsoft's offerings from the Android and iPhone competition.

It doesn't seem as though Nokia is envisioning its Windows Phones as helping the company attract the next billion phone users; instead, Nokia is playing up its four new S40-based "Asha" phones as its offerings aimed at cost-sensitive younger users in emerging markets. That said, the Lumia 720 is going to be available first (later this year) in Russia, Taiwan, India, Hong Kong and Singapore. The Lumia 800 is going to be available first in six European markets this fall, and Russia, Taiwan, India, Hong Kong and Singapore before the end of the year.

Microsoft is really betting heavily on Nokia to push Windows Phone sales. Though the two Lumias introduced today look nice, they seem pretty pricey (to a U.S. consumer like me who is used to cheaper phones), especially given they don't offer a whole lot more -- feature-wise -- than other Mango phones. My ZDNet colleague Larry Dignan wonders aloud whether consumers will see them as "must have" gadgets. Maybe other phones in the coming U.S. portfolio will be must-haves, but these, to me, are not. You thoughts?

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